Question

Which is not true statement?

• A. $\alpha$-carbon of $\alpha$-amino acid is asymmetric
• B. All proteins are found in L-form
• C. Human body can synthesise all proteins they need
• D. At $= 7$ both amino and carboxylic groups exist in ionised form

Answer 1

Answer: (B)

All proteins are found in L-form

Answer 2

All proteins are not found in $L$-form but they may be present in form of $D$ or $L$.